WO2018189894A1 - 空気調和機の室内ユニット - Google Patents
空気調和機の室内ユニット Download PDFInfo
- Publication number
- WO2018189894A1 WO2018189894A1 PCT/JP2017/015346 JP2017015346W WO2018189894A1 WO 2018189894 A1 WO2018189894 A1 WO 2018189894A1 JP 2017015346 W JP2017015346 W JP 2017015346W WO 2018189894 A1 WO2018189894 A1 WO 2018189894A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drain pan
- indoor unit
- dew receiving
- air
- air conditioner
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0083—Indoor units, e.g. fan coil units with dehumidification means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
- F24F2013/227—Condensate pipe for drainage of condensate from the evaporator
Definitions
- the present invention relates to an indoor unit of an air conditioner, and particularly relates to a countermeasure against condensation on a drain pan.
- Patent Document 1 as a countermeasure against dew condensation on the drain pan, the cross section of the central portion of the drain pan is made hollow, and a groove is provided at the lowest portion of the central portion. By doing so, the heat insulation effect is acquired in the center part of the drain pan, and the dew condensation of the drain pan is suppressed.
- Patent Document 1 has a problem that condensation measures are taken at the center of the drain pan, but no condensation measures are taken at the side of the drain pan, and condensation tends to occur at the side of the drain pan.
- This invention was made in order to solve the above problems, and it aims at providing the indoor unit of the air conditioner which can suppress the dew condensation of the side part of a drain pan.
- An indoor unit of an air conditioner includes a heat exchanger that creates conditioned air by exchanging heat between a refrigerant and room air, and a lower part of the lower end of the heat exchanger.
- a heat insulating sheet is provided on the side surface of the drain pan so as to cover the entire opening of the concave portion.
- the drain pan is provided with a recess provided below the side dew receiving portion and a heat insulating sheet provided on the side surface of the drain pan. Since a high heat insulating effect is obtained at the side portion, condensation on the side portion of the drain pan can be suppressed.
- FIG. 4 is a plan view of a right side portion of the drain pan shown in FIG. 3.
- FIG. 4 is a rear view of the right side portion of the drain pan shown in FIG. 3.
- It is the perspective view which looked at the right side part of the drain pan shown in FIG. 3 from the front side.
- It is a side view of the right side part of the drain pan shown in FIG.
- It is the figure which affixed the heat insulation sheet on the right side surface of the drain pan shown in FIG.
- It is a schematic diagram explaining the air layer formed in the right side part of the drain pan shown in FIG.
- FIG. 1 is an external perspective view of an air conditioner indoor unit 100 according to an embodiment of the present invention as viewed from the front side
- FIG. 2 is an air conditioner indoor unit 100 according to an embodiment of the present invention. It is the longitudinal cross-sectional schematic diagram which looked at from the right side.
- the indoor unit 100 of the air conditioner supplies conditioned air to an air-conditioning target area such as a room by using a refrigeration cycle that circulates a refrigerant.
- an air-conditioning target area such as a room by using a refrigeration cycle that circulates a refrigerant.
- the indoor unit 100 is a wall-mounted type attached to the wall surface of the air-conditioning target area is shown as an example.
- the indoor unit 100 includes a rear case 1 attached to a wall surface and a housing 2 attached to the front surface of the rear case 1.
- the housing 2 mainly receives indoor air.
- a suction port 3 for sucking into the interior and an outlet 4 for supplying conditioned air to the air-conditioning target area are formed.
- a front design panel 5 that can be opened and closed is attached to the front surface of the housing 2.
- the indoor unit 100 In the interior of the indoor unit 100, as shown in FIG. 2, a blower fan 6 that sucks room air from the suction port 3 and blows conditioned air from the blowout port 4, and an air path from the suction port 3 to the blowout port 4, A heat exchanger 7 is housed that is arranged so that the longitudinal direction is the left-right direction, and that produces conditioned air by exchanging heat between the refrigerant and the room air. And the air flow path is connected in the housing
- the indoor unit 100 further includes an electrical component box (not shown) that accommodates a circuit board and the like, and a drain pan 10 that is provided below the lower end of the heat exchanger 7 and collects condensed water from the heat exchanger 7. And. The drain pan 10 will be described in detail later.
- the suction port 3 is formed in the upper part of the housing 2.
- the air outlet 4 is formed in the lower part of the housing 2.
- the blower fan 6 is disposed on the downstream side of the suction port 3 and on the upstream side of the heat exchanger 7, and is configured by, for example, an axial fan or a diagonal fan.
- the heat exchanger 7 is formed in an inverted V shape or ⁇ shape in the longitudinal section, and is disposed on the leeward side of the blower fan 6.
- a fin tube heat exchanger may be used as the heat exchanger 7.
- the suction port 3 is provided with a finger guard and a filter (not shown).
- the blower outlet 4 is provided with an up / down air direction adjusting plate 8 for controlling the blowing direction of the airflow.
- the heat exchanger 7 does not have to be strictly an inverted V shape or a ⁇ shape in the longitudinal section.
- the blower fan 6 is not limited to the one disposed on the upstream side of the heat exchanger 7, and may be configured by a cross flow fan or the like disposed on the downstream side of the heat exchanger 7.
- room air flows into the indoor unit 100 from the suction port 3 formed in the upper part of the housing 2 by the blower fan 6. At this time, dust contained in the air is removed by a filter (not shown).
- This indoor air is heated or cooled by the refrigerant that is conducted through the heat exchanger 7 when passing through the heat exchanger 7 to become conditioned air.
- the conditioned air is blown out of the indoor unit 100 from the air outlet 4 formed in the lower part of the housing 2, that is, to the air-conditioning target area.
- FIG. 3 is a perspective view of the drain pan 10 of the indoor unit 100 of the air conditioner according to the embodiment of the present invention as viewed from the front side
- FIG. 4 is a diagram of the right side 10b of the drain pan 10 shown in FIG.
- FIG. 5 is a rear view of the right side portion 10b of the drain pan 10 shown in FIG. 3
- FIG. 6 is a perspective view of the right side portion 10b of the drain pan 10 shown in FIG.
- FIG. 7 is a side view of the right side portion 10b of the drain pan 10 shown in FIG.
- the broken lines A and B in FIG. 4 and FIG. 5 indicate the boundary line between the central dew receiving portion 11a and the side dew receiving portion 11b.
- An arrow C in FIG. 5 will be described later.
- the drain pan 10 is disposed below the lower end of the heat exchanger 7 and collects condensed water adhering to the heat exchanger 7 during the cooling operation of the indoor unit 100, and has the configuration shown in FIGS. ing.
- the drain pan 10 includes a dew receiving portion 11 that receives dew condensation water.
- the dew receiving portion 11 includes a central dew receiving portion 11 a that is located in the central portion 10 a of the drain pan 10 and a side portion 10 b of the drain pan 10. And the side dew receiving portion 11b.
- a connecting portion 12 to which a drain hose (not shown) is connected is provided on the back side of the side portion receiving portion 11 b.
- the connecting portion 12 has a circular inner wall 13 and a drain port 14 formed by being surrounded by the inner wall 13.
- a channel that is long in the left-right direction and communicates with the side dew receiving part 11b is formed on the upper surface of the central dew receiving part 11a.
- a channel that is long in the front-rear direction and communicates with the drain port 14 is formed on the upper surface of the side dew receiving portion 11b.
- the drain pan 10 is also inclined with respect to the horizontal direction.
- the upper surface of the central dew receiving part 11a and the upper surface of the side dew receiving part 11b are inclined in the direction in which the indoor unit 100 is inclined and are inclined toward the back side.
- the dew condensation water adhering to the heat exchanger 7 during the cooling operation of the indoor unit 100 drops on the upper surface of the central dew receiving portion 11a, and then on the upper surface of the side dew receiving portion 11b inclined downward with respect to the horizontal direction. After moving, the water is discharged from the drain port 14 of the connecting portion 12 to the outside of the indoor unit 100 through the drain hose.
- a recessed portion 15 that is recessed toward the opposite side portion 10 b is provided below the side portion dew receiving portion 11 b.
- the concave portion 15 has a peripheral wall 16, and the peripheral wall 16 is provided so as to cover the lower surface of the side dew receiving portion 11b through a space.
- the peripheral wall 16 is provided with a plurality of ribs 17 protruding to the space side.
- FIG. 8 is a view in which a heat insulating sheet 20 is attached to the right side surface of the drain pan 10 shown in FIG. 4, and FIG. 9 shows an air layer 21 formed on the right side portion 10b of the drain pan 10 shown in FIG.
- a heat insulating sheet 20 which is a heat insulating material
- FIG. 9 shows an air layer 21 formed on the right side portion 10b of the drain pan 10 shown in FIG.
- a heat insulating sheet 20 which is a heat insulating material
- FIG. 9 shows an air layer 21 serving as a cavity is formed between the recess 15 and the heat insulating sheet 20.
- this air layer 21 plays a role as a heat insulating material having a high heat insulating effect. Therefore, a high heat insulating effect is obtained by providing the heat insulating sheet 20 and the air layer 21.
- the side dew receiving part 11b is likely to condense because the speed of the dew condensation water is slower than that of the central dew receiving part 11a. Therefore, in the side dew receiving part 11b, it is necessary to take sufficient dew condensation countermeasures, but by providing the heat insulating sheet 20 and the air layer 21, a high heat insulating effect can be obtained in the side dew receiving part 11b. Condensation of the dew receiving part 11b can be suppressed.
- the heat insulating sheet 20 is made of polystyrene foam, and is commercially available as an inexpensive resin heat insulating material.
- This heat insulating sheet 20 is originally a sheet-like sheet, and is cut in accordance with the shape of the side surface of the side portion dew receiving portion 11b. Polystyrene foam is soft and easy to cut with scissors or a cutter.
- the heat insulating sheet 20 has an adhesive surface on at least one side.
- the heat insulating sheet 20 as a heat insulating material for the side dew receiving portion 11b, it becomes unnecessary to perform mold molding that has been necessary in the past, and it is also easy to attach the drain pan 10 to the side surface. Cost can be suppressed.
- the bonding area between the heat insulating sheet 20 and the side surface of the drain pan 10 increases.
- the heat insulating sheet 20 is easily attached to the side surface of the drain pan 10.
- the recessed part 15 is dented at least to the position (position shown by the arrow C in FIG. 5) that is closest to the central dew part 11a in the inner wall 13 of the connecting part 12.
- this recessed part 15 should just be recessed to the boundary of the center dew part 11a and the side dew part 11b at most. This is because the dew water flow rate is faster in the central dew receiving part 11a than in the side dew receiving part 11b, so that sufficient insulation can be achieved by attaching a heat insulating material (not shown) to the lower surface of the central dew receiving part 11a. This is because the air layer 21 is not required to be heat-insulated.
- the indoor unit 100 of the air conditioner includes the heat exchanger 7 that creates conditioned air by exchanging heat between the refrigerant and the indoor air, and the lower portion of the heat exchanger 7.
- a drain pan 10 that collects the dew condensation water, and is provided on the side 10b of the drain pan 10 below the side dew receiving portion 11b that receives the dew condensation water and the side dew receiving portion 11b,
- a recess 15 that is recessed toward the side 10b opposite to the side 10b, and a heat insulating sheet 20 is provided on the side of the drain pan 10 so as to cover the entire opening of the recess 15. .
- the recessed portion 15 provided on the lower side of the side portion dew receiving portion 11b of the drain pan 10 the heat insulating sheet 20 provided on the side surface of the drain pan 10, Since a high heat insulating effect is obtained in the side dew receiving part 11b, dew condensation on the side dew receiving part 11b can be suppressed.
- the side dew receiving portion 11b is provided with a connecting portion 12 having an inner wall 13 that forms a drain port 14, and the recess 15 is formed on the inner wall. 13 is recessed at least to the position closest to the central dew receiving portion 11a.
- the side dew receiving portion 11b since the air layer 21 is formed in the entire lower part of the drain port 14 where condensation is most likely to occur, the side dew receiving portion 11b has a high heat insulating effect. can get.
- the recessed portion 15 has a peripheral wall 16 provided so as to cover the lower surface of the side dew receiving portion 11b through a space. Is provided with a plurality of ribs 17 projecting toward the space.
- the indoor unit 100 of the air conditioner when the heat insulating sheet 20 is attached to the side surface of the drain pan 10 by the plurality of ribs 17, the bonding area between the heat insulating sheet 20 and the side surface of the drain pan 10 is increased. Therefore, the heat insulating sheet 20 is easily attached to the side surface of the drain pan 10.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Abstract
Description
図1は、本発明の実施の形態に係る空気調和機の室内ユニット100を正面側から見た外観斜視図であり、図2は、本発明の実施の形態に係る空気調和機の室内ユニット100を右側面側から見た縦断面模式図である。
なお、以下の説明において、理解を容易にするために方向を表す用語、例えば「上」、「下」、「右」、「左」など、を適宜用いるが、これは説明のためのものであって、これらの用語は本願発明を限定するものではない。また、本実施の形態では、空気調和機の室内ユニット100を正面視した状態において、「上」、「下」、「右」、「左」を使用する。
まず、室内空気は、送風ファン6によって筐体2の上部に形成されている吸込口3から室内ユニット100内に流れ込む。このとき、図示省略のフィルターによって空気に含まれている塵埃が除去される。この室内空気は、熱交換器7を通過する際に熱交換器7内を導通している冷媒によって加熱または冷却されて空調空気となる。そして、空調空気は、筐体2の下部に形成されている吹出口4から室内ユニット100の外部、つまり空調対象域に吹き出されるようになっている。
図8に示すように、ドレンパン10の側面には、凹部15の開口全体を覆うように、断熱材である断熱シート20が貼り付けられている。そのため、図9に示すように、凹部15と断熱シート20との間には、空洞となる空気層21が形成されている。なお、空気の熱伝導率は非常に小さいため、この空気層21は断熱効果の高い断熱材としての役割を果たす。そのため、断熱シート20および空気層21を設けることにより、高い断熱効果が得られる。
Claims (3)
- 冷媒と室内空気との間で熱交換することで空調空気を作り出す熱交換器と、
前記熱交換器の下端部の下方に設けられ、結露水を回収するドレンパンと、を備え、
前記ドレンパンの側部には、
結露水を受ける側部露受部と、
前記側部露受部の下側に設けられ、前記側部とは反対側の側部に向かって凹んだ凹部と、を備え、
前記ドレンパンの側面には、前記凹部の開口全体を覆うように断熱シートが設けられている
空気調和機の室内ユニット。 - 前記ドレンパンの中央部には、結露水を受ける中央露受部を備え、
前記側部露受部には、排水口を形成する内壁を有する接続部が設けられており、
前記凹部は、前記内壁のうち、最も前記中央露受部側となる位置まで少なくとも凹んでいる
請求項1に記載の空気調和機の室内ユニット。 - 前記凹部は、前記側部露受部の下面を、空間を介して覆うように設けられた周壁を有し、
前記周壁には、前記空間側に突出したリブが複数設けられている
請求項1または2に記載の空気調和機の室内ユニット。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019512157A JP6833017B2 (ja) | 2017-04-14 | 2017-04-14 | 空気調和機の室内ユニット |
CN201780087842.7A CN110494698A (zh) | 2017-04-14 | 2017-04-14 | 空调机的室内单元 |
PCT/JP2017/015346 WO2018189894A1 (ja) | 2017-04-14 | 2017-04-14 | 空気調和機の室内ユニット |
US16/483,446 US10982878B2 (en) | 2017-04-14 | 2017-04-14 | Indoor unit of air-conditioning apparatus |
EP17890846.3A EP3578899B1 (en) | 2017-04-14 | 2017-04-14 | Indoor unit for air conditioner |
AU2017408933A AU2017408933B2 (en) | 2017-04-14 | 2017-04-14 | Indoor unit of air-conditioning apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2017/015346 WO2018189894A1 (ja) | 2017-04-14 | 2017-04-14 | 空気調和機の室内ユニット |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018189894A1 true WO2018189894A1 (ja) | 2018-10-18 |
Family
ID=63792523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2017/015346 WO2018189894A1 (ja) | 2017-04-14 | 2017-04-14 | 空気調和機の室内ユニット |
Country Status (6)
Country | Link |
---|---|
US (1) | US10982878B2 (ja) |
EP (1) | EP3578899B1 (ja) |
JP (1) | JP6833017B2 (ja) |
CN (1) | CN110494698A (ja) |
AU (1) | AU2017408933B2 (ja) |
WO (1) | WO2018189894A1 (ja) |
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JPH08119111A (ja) | 1994-10-26 | 1996-05-14 | Koito Ind Ltd | プラットホームの安全監視システムおよびこれを用いた安全監視方法 |
JP2010121872A (ja) * | 2008-11-20 | 2010-06-03 | Mitsubishi Heavy Ind Ltd | 空気調和機 |
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NL8105922A (nl) * | 1981-12-31 | 1983-07-18 | Philips Nv | Werkwijze voor het partieel metalliseren van elektrisch geleidende niet-metallische patronen. |
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JP2006125777A (ja) | 2004-10-29 | 2006-05-18 | Sharp Corp | 空気調和機のドレンパン及びこの製造方法 |
ES2525218T3 (es) * | 2005-10-31 | 2014-12-19 | Mitsubishi Electric Corporation | Equipo interior para acondicionador de aire |
JP4187034B2 (ja) * | 2006-10-05 | 2008-11-26 | ダイキン工業株式会社 | 空気調和装置の室内ユニット |
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2017
- 2017-04-14 WO PCT/JP2017/015346 patent/WO2018189894A1/ja unknown
- 2017-04-14 CN CN201780087842.7A patent/CN110494698A/zh active Pending
- 2017-04-14 EP EP17890846.3A patent/EP3578899B1/en active Active
- 2017-04-14 JP JP2019512157A patent/JP6833017B2/ja active Active
- 2017-04-14 AU AU2017408933A patent/AU2017408933B2/en active Active
- 2017-04-14 US US16/483,446 patent/US10982878B2/en active Active
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JPS5295423U (ja) * | 1976-01-16 | 1977-07-16 | ||
JPS5715275U (ja) * | 1980-06-29 | 1982-01-26 | ||
JPH0352902U (ja) * | 1989-09-28 | 1991-05-22 | ||
JPH08119111A (ja) | 1994-10-26 | 1996-05-14 | Koito Ind Ltd | プラットホームの安全監視システムおよびこれを用いた安全監視方法 |
JP2010121872A (ja) * | 2008-11-20 | 2010-06-03 | Mitsubishi Heavy Ind Ltd | 空気調和機 |
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Title |
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See also references of EP3578899A4 |
Also Published As
Publication number | Publication date |
---|---|
AU2017408933A1 (en) | 2019-09-19 |
US10982878B2 (en) | 2021-04-20 |
EP3578899A4 (en) | 2020-03-25 |
AU2017408933B2 (en) | 2020-07-09 |
EP3578899B1 (en) | 2021-09-22 |
JPWO2018189894A1 (ja) | 2019-11-21 |
JP6833017B2 (ja) | 2021-02-24 |
EP3578899A1 (en) | 2019-12-11 |
US20200033024A1 (en) | 2020-01-30 |
CN110494698A (zh) | 2019-11-22 |
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